{"product_id":"eagle-cutting-tool-ht-640-t-d-6-40-hss-taper-tap","title":"Eagle Cutting Tool HT-640-T-D 6-40 Hss Taper Tap","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EAGLE CUTTING TOOL HT-640-T-D is a 6-40 high-speed steel taper tap manufactured in the United States. It is designed to cut internal threads in through-holes and blind holes where the tapered lead angle helps guide the tap into the workpiece for accurate thread engagement. The taper style provides a gradual cutting action, distributing cutting load across multiple leading threads to reduce breakage risk in harder materials. This tap is a standard hand and machine tap used by machinists, pipefitters, electricians, and HVAC technicians when threading small fastener holes in metal components and enclosures.\u003c\/p\u003e\u003cp\u003eThe HT-640-T-D is suited for threading 6-40 Unified Fine (UNF) holes in ferrous and non-ferrous metals. Common applications include electrical panel fabrication, HVAC equipment assembly, control board mounting hardware, and general sheet metal work where small-diameter precision threads are required. It is appropriate for both production machine tapping and hand-tapping operations on the bench.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e6-40 UNF thread form for small-diameter precision threading applications\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel (HSS) construction provides durability and heat resistance during cutting\u003c\/li\u003e\n\u003cli\u003eTaper lead angle distributes cutting load to reduce tap breakage in harder materials\u003c\/li\u003e\n\u003cli\u003eUSA manufactured for consistent dimensional accuracy and thread quality\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.08 pounds, easy to handle in confined work areas\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 6-40 UNF taper tap compatible with manual tap handles and machine tap holders sized for small-shank hand taps.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTapping should be performed by a machinist or qualified tradesperson using the appropriate tap handle or tapping head. Always drill the correct tap drill size for a 6-40 thread before starting the tap, and use a suitable cutting fluid to extend tap life and improve thread quality. Back the tap off periodically to break chips and prevent binding. Never force a tap; if resistance increases unexpectedly, back out and clear chips before continuing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 6-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: Unified Fine (UNF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Style\u003c\/strong\u003e: Taper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: EAGLE CUTTING TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HT-640-T-D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233192182066,"sku":"HT-640-T-D","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307623085.png?v=1780093731","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-ht-640-t-d-6-40-hss-taper-tap","provider":"Voomi Supply","version":"1.0","type":"link"}